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4upon the upper part of the door.

' UNITED STAT-Es PATENT Fir-ren.

GnsrAvE DROUET, or PARIS, FRANCE.

BOLT.

SPECIFICATION forming part of Letters Iatent No. 485,373, dated November1, 1892.

Applicationnearpi11,1892. serial No. 428,741. (Nomade.) Patented inFrance september 2.1891,No. 215.871: in Belgium November 17|18911N0`97,227; in Spain November 20, 1891, No;12,693, and inEnglandNovember 25,1891,No.20,535.

To a/ZZ whom it may concern.:

Be it known that I, GUSTAVE DROUET, a citizen of the French Republic,residing at Paris, France,have invented certain newand usefulImprovements in Locking Devices for Doors and Shutters, (for which Ihave obtained Letters Patent in France, No. 215,871, dated September 2,1891; in Belgium, No. 97,227, dated November 17, 1891; iu England, No.20,535, dated November 25, 1891, and in Spain, No. 12,693, datedNovember 20, 1891,) of which the following is a description.

My invention relates to a new locking device which can be applied todoors and shutters of dwelling houses and will efiicaciously protectagainst burglary.

The annexed drawings, which make a part of this specification,illustrate my device when put together, and also the several detailviews.

Figure 1 shows my invention as appliedito a single door. Fig. 2 shows itas applied to a double door. Fig. 3 is an enlarged detail View of theoperating-pinion and its connection. Fig. 4 is a sectional View on line4 4 of Fig. 3. Fig. 5 is a view of the connection loetween one of themain rods and the curved rods. Fig. 6 is a View illustrating theconnection between the main-rod sections. Fig. 7 is a sectional view online7 7 of Fig. 6. Fig. 8 is a View of the upper bolt proper. Fig. 9 isa View of one of the side bolts. Fig. 10 is a sectional view on line 1010 of Fig. 9. Fig. 11 is a view of one of the guiding-studs and itsplate, and Fig. 12 illustrates the connection between the pinion andracks in the construction employed for double doors.

In Fig. 1, A and A are two straight rods, made of metal or any othersuitable material, arranged one upon the lower and the other Theapproaching ends of these rods are provided with racks a and a', Fig. 8.The ends of the bars, which are formed into racks, are bent outwardlyand are narrower than the rest of the bars, so that when the rods A andA are placed in position a sufficient space is left between the racksfor the arrangement of a toothed pinion B gearing with the two racks.(See Fig. 3.) A casing C, similar to the casing of a lock, is iixed uponthe door in any convenient manner. The pinion B is acted upon by a stemb, that is provided outside the cases with a suitable handle b. At theirother ends the rods A and A are provided with bolts a2. These bolts areformed in one piece with the rods, or secured thereto, and are madehollow, at least partly, so that guiding devices can be lodged in thesame and the bolts be still freely moved. To this end the inside of thebolt is provided with a groove 01,3, the length of which corresponds toits motion and sufticiently wide for the passage of the stud of theguide, Figs. 8, 9, and 10. This guide, Fig. 11, is composed of aT-shaped stud CZ, mounted on the plate D, that is provided with holes dfor the screws by which it is fixed on the door. This plate D is fixedon the door in such manner that the T-shaped end of the stud forms aright angle with the longitudinal axis of the groove d3 when the rod Eis in its place. (See Figs. 8 and 9.)

E, Fig. 5, are jointing-pieces fixed in any suitable manner to the rodsA and A for the purpose yof connecting to the same the curved bars F.

The rods A and A can be made in one piece; but in order to be enabled tolengthen or shorten them, so as to make my device suitable for any door,I prefer to form the rods in two pieces 1 and 2, sliding into eachother. The rods are then fixed in the suitable position by means of acollar G, provided upon that part of the rod into which the other partslides, (l inthe drawings,) and equipped with a set-screw g, Figs. 6 and7.

F are curved bars connected to the straight bars A and A in the mannerheretofore described. At their free ends they are provided with boltsa2, constructed similarly to those of the straight bars, With theexception that they can turn on a pivot f Fig. 9. The fixed ends of therods F, which are screwed onto the jointing-pieces E, are provided withseveral holes e, arranged in the center of the rod, as shown in Fig. 5,so that the connection to the jointing-pieces can be changed inaccordance with the width of the door. Z are the catches arranged on theframe for the reception of the bolts.

In order to utilize the handle of the lock- IOO bolt y for the operationof my apparatus, I have devised the arrangement illustrated in Figs. 3and 4c.

Z2 is the axle on which the toothed pinion B is keyed that impartsmotion to the racks a and a', and consequently the bars A and A'. Onthis axle or pin I arrange two bosses H and H. The boss H, that is keyedon the pin b, is provided with a lever z, which acts upon the lock-bolty by means of a small chain h'. The second boss H is loosely mounted onthe pin b, but is rigidly connected to the toothed pinion B, and willthus carry the latter along in its motion. By means of a removable keyor pin K, which I insert in a suitable passage made in the bosses H H',and the axle b, the whole device is connected, and the motion of thehandle b will be directly transferred to the pinion.

In order to lock my closing apparatus, it is sufficient to turn thehandle after first having coupled the parts byinserting the key or pin Kand having disconnected the little chain h'. The toothed pinion B isthen set in motion and will act upon the racks c and a', and thus uponthe straight bars A and A', the bolts of which enter into the catches Zat the same time with the bolts of the curved bars F, to which motion iscommunicated by the straight bars. To open the device, it is onlynecessary to turn the handle in the opposite direction.

Fig. 2 shows the arrangement which I prefer to adopt for double doors orshutters. A A' are the straight rods, exactly like those heretoforedescribed, with the exception that the rods A, instead of beingconnected to the curved bars F by jointing-pieces, (as is the case withthe bars A' at the jointing-pieces E,) are connected to a projection al,provided on the outside of the racks a, Fig. l2. The rods are also setin motion by a toothed pinion B ,constructed as heretofore described.

L is a connecting-bolt having for its purpose firmly to connect the twodoors. It is composed of a bent iron rod pivoted at one of its ends Z,and is provided with a slot l', in which slides a stud O, fixed upon thestraight bar A. Z is the catch into which this conmeeting-bolt enters.

In order to manipulate my apparatus by means of the lock of the doorwhen this is locked, I have devised the arrangement shown in Figs. 2 and3, the former for double doors and the latter for single doors.

In the device for double doors I pass one of tho straight bars Aunderneath the lock, and I arrange on the rear end of the night-bolt ofthe lock a stud N, which when the bolt is pushed forward will enter intoan opening n, arranged on the corresponding side of the straight bar,thus preventing any up or downward motion of the latter.

In the device for single doors, Fig. 3, I extend the rear end of thenight-bolt with a piece M, wherein I arrange a rectangular slot, one endof which is formed circular, so as to allow the square h2, fixed uponthe pin b, to turn freely in this part of the openingthat 1s to say,when the bolt is open-while 1t cannot make any motion in the other partof the opening when the bolt is closed, (after having been moved in thedirection of the arrow.)

Having now described my invention, what I claim as new, anddesire tosecure by Letters Patent, is

l. In a closing device for doors, &c., the combination,with the mainbolts, of side bolts, curved rods by -which the side bolts are connected to the main bolts, and a means for throwing the main bolts.

2. In a closing device for doors, the., the combination, with sectionalrods A A', of bolts carried thereby and a pinion arranged to engageracks carried by the inner sections of the rods, substantially asdescribed.

3. In a closing device for doors, &c., the combination, with rods A A',of bolts carried thereby, a means for throwing the rods, curved rods F,adjustable connections between the rods A A and the rods F, and boltscarried by the rods F, substantially as described.

4t. A closing device for doors and shutters characterized by thefollowing principal parts: the straight bars A A', carrying racks attheir inner ends, gearing with a pinion mounted on the pin b,manipulated by the handle b and provided with the connecting-plates E,to which are screwed the curved rods F, said straight bars beingcomposed of two parts sliding into each other and equipped with a collarG, the straight and curved bars being provided with bolt-shaped endpieces engaging with catches Z and guided by guiding devices passedthrough slots a3, arranged in the bolts, the boss H, keyed upon the pinb and equipped with the lever-arm h, which acts by means of a smallchain upon the lockbolt, the second boss H', mounted loosely upon thepin b', but which can be made rigid by the key K, and thus rmlyconnected to the pinion B, and the piece M, formed at the rear end ofthe lock-bolt and provided with a slot m, the square part of which fitssnugly around the square h2, keyed upon the pin b, substantially asdescribed.

5. In a closing device for doors and shutters, a straight bar A, formedin two pieces sliding into each other and kept in place by a collar Gr,a similar straight bar A', provided with a little side notch n, whichengages with a stud N, arranged on the rear end of the lock- IOO IIO

bolt, a curved rod F, provided at its outer end ters, in combinationwith the straight bars equipped with racks and bolts acted upon by apinion, curved bolts L, pivoted at Z and guided by a stud O, fixed uponthe straight 5 bar sliding in the slot Z', so that these bolts engagewith catches Z', substantially as hereinbefore described and set forth.

it I claim the foregoing as "sunto affixed my signature in presence`ftwo Witnesses.

GUSTAVE DROUET.

Witnesses:

J. BERNHARD, ROBT. M. HooPER.

